event that is listened for by the view, when you want to
enable/disable menu options. The listening function would do
something like this:
private function enableMenuItems(mb:MenuBar):void
{
for (var i:int = 0; i < 2; i++)
{
mb.getMenuAt(i).enabled =
ModelLocator.getInstance().enabledMenuArray(i).enabledValue;
}
}
Not true binding, but it might work. This code has errors, but you
get the idea. Just brainstorming.
-TH
--- In [email protected], Graham Weldon <[EMAIL PROTECTED]>
wrote:
>
> Hi Tim,
>
> Curly braces dont work for data binding within ActionScript in the
> manner you suggest:
> * Expecting colon before dot.
> * Syntax Error: rightbrace is unexpected.
> * Expecting rightbrace before semicolon.
>
> Those are the compile errors encountered. Perhaps there is another
wya
> to use dataBinding from ActionScript? Or alternatively, there may
be a
> way to completely define this component in MXML, allowsin us to
use the
> curly-brace notation for databinding?
>
> Regards,
> Graham Weldon
>
>
>
>
> Tim Hoff wrote:
>
> > Did you try this: (curly braces for binding)
> >
> > <menuItem label="New" enabled="' +
> > { ModelLocator.getInstance
().ACTION_ENABLED_FILE_NEW }
> > + '"/>
> >
> > --- In [email protected], "Graham Weldon"
> > <graham.weldon@> wrote:
> > >
> > > I've asked this question previously, but in a slightly
different
> > > manner, and since its post, I ahve managed to make some
progress.
> > >
> > > I have created a new MXML component that represents a MenuBar
with
> > > some items within that will not change except for their enabled
> > value.
> > > I am building this on top of the Cairngorm framework 2.0 beta,
> > which
> > > means I'm taking advantage of the ModelLocator construct.
> > >
> > > I have a collection of ENABLED indicators stored on the
> > ModelLocator,
> > > which will be changed at varying points in the programs
execution.
> > > These states need to enable and disable the options in the
menu.
> > >
> > > Here is a snippet of what I am using, which works great for
> > indicating
> > > the initial required enabled or disabled state, but does not
> > update as
> > > the variables change...
> > >
> > > Any thoughts on how to restructure this to allow the options to
> > update
> > > in real time with data binding, rather than being set upon
> > > instantiation and initialisation of the component.
> > >
> > > Thanks in advance!
> > >
> > > Regards,
> > > Graham Weldon
> > >
> > >
> > > ==============================================
> > >
> > > import mx.collections.XMLListCollection;
> > >
> > > [Bindable]
> > > private var menuXML : XMLListCollection = new
> > > XMLListCollection(rawMenuXML);
> > > [Bindable]
> > > private var rawMenuXML : XMLList = XMLList(
> > > '<menuItem label="File" enabled="' +
> > > ModelLocator.getInstance().ACTION_ENABLED_FILEMENU
+ '">' +
> > >
> > > '<menuItem label="New" enabled="' +
> > > ModelLocator.getInstance().ACTION_ENABLED_FILE_NEW
> > + '"/>' +
> > > '<meunItem label="Open" enabled="' +
> > > ModelLocator.getInstance().ACTION_ENABLED_FILE_OPEN
> > + '"/>' +
> > >
> > > '</menuItem>'
> > > );
> > >
> > >
> > >
> > > <mx:MenuBar
> > > labelField="@label"
> > > xmlns:mx="http://www.adobe.com/2006/mxml"
> > > dataProvider="{menuXML}"/>
> > >
> > > ==============================================
> > >
> >
> >
> >
> >
> >
> >
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